<!-- ui-box 组件 -->
    <div class='appb-ui-rect appb-ui-rect_h{{$ctrl.h}}'
      ng-style='$ctrl.maxHeight && {"max-height":$ctrl.maxHeight}'
    >
      <div class='appb-ui-rect-content'>
        <img ng-if='$ctrl.img' ng-src="{{$ctrl.img}}">
      </div>
    </div>
